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1.影响被加工孔轴线偏移的诸因素用与组合机床主轴浮动连接的刀具加工孔系时,孔轴线的位置精度(同用刚性连接的刀具时一样)由刀具在导向套内的几何偏移和刀具在切削力作用下的弹性偏移两者影响之和来确定。影响刀具轴线几何偏移量的结构工艺参数有:导向长度、导向套与刀具引导部分的配合间隙和刀具在套端外的悬伸长度。另外,刀具导向部件的某些制造误差也会引起刀具轴线偏移:轴承孔轴线偏移、
1. Factors Affecting the Axis Offset of Machined Hole When the holes are machined by the tool floatingly connected with the combined machine tool spindle, the position accuracy of the hole axis (same as when connected rigidly) is determined by the geometric deviation of the tool in the guide sleeve And the tool in the cutting force under the influence of the elastic offset and the impact of both to determine. Structural parameters that affect the geometric offset of the tool axis are: the guide length, the mating clearance between the guide sleeve and the tool guide and the overhang of the tool outside the sleeve end. In addition, some manufacturing errors of the tool guide also cause the tool axis to deviate: the bearing hole axis is offset,